[concurrency-interest] concurrency errors in java.lang.Throwable
gergg at cox.net
Thu Aug 3 13:36:53 EDT 2006
Rémi Forax wrote:
> I've a test case that shows the bug :
> "bang !" is never (at least 15min :) printed with the server VM.
Right... Because you are publishing without synchronization, the initCause()
call's action of setting the field in one thread is not guarenteed to be visible
in another threads read of that field.
On my laptop (dual core Xeon), it does become visible. Perhaps because of the
rate of garbage generation (new Throwable()), the GC activities are driving the
As David said, "Only trouble is today it is Throwable tomorrow, its ...". There
are all kinds of opportunities for threads to forget to synchronize
communications/publishing of values between threads. That's the education issue.
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